Smart Alarm Indoor camera records at disarming and entry

I have a wireless Smart Alarm indoor camera whose PRIVACY SHUTTER is set to CLOSED, i.e., motion detection is set to OFF, for all three arming states, HOME, AWAY & OFF, of the security system. 

My intention was to prevent the camera from recording anything at all on its own.

But a strange thing happens. When I switch the system from HOME to OFF arming state in the morning, the camera shutter opens, and it starts recording (for about a minute). It also records when I return home and switch the system from AWAY to OFF arming state.

Is this an expected behavior? And, if so, is there any way to stop this from happening?